The word mustache is derived from the French word moustache and is the facial hair that grows just above the lip. Men often allow this hair to grow in full rather than shaving it. Caring for a mustache is an important part of a man's grooming routine. Since the mustache is directly above the mouth, it can get rather dirty over the course of the day. Clean your mustache daily to help ensure you look your best.
Wet your face and mustache in the shower or over a sink until they are saturated.
Squeeze a drop of shampoo on the tip of your fingers. Work the shampoo into a lather on your mustache.
Rinse off your mustache under a steady stream of water or splash it with handfuls of water to remove the shampoo.
Apply a drop of conditioner to your fingers and work into a lather on your mustache to soften the hair. Allow it to sit for two to three minutes, then rinse it off.
Towel dry your face and mustache to remove the water. Comb it with a fine-tooth comb to straighten it out.